Automatic sprinkler-head



Patented June 15,1897.

(No Model.)

B M COOK AUTOMATIC SPRINKLER HEAD.

' UNiTnD STATES PATENT OFFICE. I

EMANUEL MANEY COOK, OF INDIANAPOLIS, INDIANA, ASSIGN OR, BY MESNEASSIGNMENTS, TO THE GENERAL FIRE EXTINGUISHER COMPANY, OF

OHIO.

SPECIFICATION forming part of Letters Patent No. 584,461, dated June 15,1897. Application filed July 8, 1895. Serial No. 555,239. (No model.)

To all whom it may concern:

Be it known that I, EMANUEL MANEY 000K, a citizen of the United States,residingat Indianapolis, in the countyof Marion and State of Indiana,have invented certain new and This invention belongs to the class ofsprinkler-heads which are connected at intervals to Water-distributingpipes suspended in a building and are held closed under normalconditions by means which permit them to open automatically when thetemperature is raised by the breaking out of a fire in their vicinity.

The invention relates particularly to the strut or brace which isemployed to hold the sprinkler-valve closed; and the object of theinvention is to provide and combine with the sprinkler and its valve astrut of novel construction which with very little strain upon thefusible solder with which its parts are connected will hold the valveclosed, but which in the presence of the proper degree of heat willquickly and surely separate into its component parts, to the end thatthe valve shall be completely released. The invention consists in theconstruction and combination of the parts hereinafter described andclaimed.

In the drawings, Figure l is an elevation of'the improvedsprinkler-head. Fig. 2 is a side view with one side of the yoke brokenaway. Fig. 3 is a view similar to Fig. 2, but

showing the valve open. Fig. 4 is a view ofv the upper part of thestrut.

Referring to the parts by letter, A represents an automaticsprinkler-nozzle, B a disk valve for closing it, and O a yokgattached tothe nozzle in the usual way. Z) represents a spring-cap which ispreferably used, and when used lies against the outer side of the valve.The strut or brace for holding the valve closed consists of three piecesD, E, and G, which are constructed and connected in the manner to bepresently explained. When in use for the intended purpose, one end ofthe strut the slots.

engages the middle point of the-valve B or spring-cap b, if the latterbe used, while its other end engages the lower part of the yoke,

wherefore it holds the valve closed so long as its parts remainconnected.

The piece D is preferably stamped from a sheet of brass or othersuitable material. It has a notch d in one end, and in its most perfectform has also a slot d'- between its ends,

as shown.

The piece E is similar to the piece D in form, having the notch e in oneend and the slot 6 between its ends.

The piece G is approximately S-shaped. Its middle part g, when thepieces are connected and secured in place to hold the valve closed, issubstantially horizontal, and its length is substantially equal to thecombined thickness of the two pieces D and E. The substantially verticalparts g g of the piece G extend in opposite directions from oppositeends of the part 9. In its completeness and perfect-ion the piece G isalso provided with substantially horizontal ends g gt, which extend inopposite directions from the outer ends of the parts g 9 When the threepieces are assembled to form the strut, the part g of the piece G liesin the notches cl and e in the pieces D and. E, respectively. Theoverlapping portions of the pieces D and E are in contact. The parts g"and g of the piece-G- lie against the outer sides of the parts D and E,and the ends 9 and 9 pass through the slots d and 6, respectively. \Vhenin this position, easilyfusible solder having any desired meltingpointis applied, so as to uniteall of the parts which, as. above explained,are in contact. This solder will adhere to theprojecting ends g 9forming a sort of bur, which, since said ends are fitted nicely to theslots (Wand a will prevent the withdrawal of said ends through hen thestrut above described'is holding the valve closed, very little of thestrain is borne by the solder. The endwise thrust of the pieces D i andE is against the part 9 of the piece G. The relative position of thethree pieces cannot change until the piece G is turned like a lever, insubstantially-the manner indicated in Fig. 3. The bearingpoints'of thepieces D and E upon the part 9 are so close together that they exertonly a little leverage tending, to turn it, and this tendency isresisted not only by the solder which fastens the parts together, but toa great degree by the burs of solder upon the ends g g Nevertheless,the-leverage of the pieces D and E upon the part 9 is suflicient tocause it to turn in the direction, shown in Fig. 3 when the solder issoftened by heat,

and the softened solder acts substantially like a lubricant tofacilitate the relative movement of the parts. Immediately the part Gbegins to move the parts of the three pieces begin to separate, as shownin Fig. 8, wherefore the breaking up of the strut and the completerelease of the valve is insured. The sprinkler-head above explained isadapted for use in either a wet or dry pipe system.

Having described my invention, I claim- I In an automaticfile-extinguisher, the combination of anozzle, a valve-disk. and a yokeend and a slot between its ends, and, second,

the piece E havinga notch in its inner end and a slot between its ends,and, third, the piece G having a substantially horizontal central partwhich lies in said notches, two parts 9 g which extend in oppositedirections from opposite ends of said central part, and twoapproximately horizontal ends 9 g which extend in opposite directionsfrom the outer ends of said parts 9 g and lie in said slotsrespectively,and easily-fusible solder for connecting said pieces,substantially as and for the purpose specified.

In testimony whereof I aflix my signature in presence of two witnesses.

EMANUEL MANEY COOK. Witnesses:

ADDIE L. HARDY, MARIA E. MURRY.

It is hereby eertified that the assignee in Letters Patent No. 584,461granted June 15, 1897, upon the application of Emanuel Maney Cook, ofIndianapolis, Indiana,

for an improvement in Automatic Sprinkler-Heads, should have beendescribed. and

specified as The General Fire Extingwisher Compam, of New York, instead'of The General Fire Extinguisher Company, of Ohio, and that the saidLetters Patent should be read with this eorrection therein that the samemay conform to the record of the case in the Patent Office.

Signed. conntersigned, and sealed this 27th day of July,A. D. 1897.

WEBSTER DAVIS,

[SEAL] Assistant Secretary of the Mterior Countersigned BENJ.BUTTERWORTH,

Commissioner of Patents.

